:Product: 0520RSGA.txt
:Issued: 2009 May 20 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 140 Issued at 2200Z on 20 May 2009
IA.  Analysis of Solar Active Regions and Activity from  19/2100Z
to 20/2100Z:  Solar activity was very low. Region 1017 (N17W44) has
decayed into spotless plage. No flares were observed during the last
24 hours.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low.
IIA.  Geophysical Activity Summary 19/2100Z to 20/2100Z:
The geomagnetic field was quiet.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet for the next three days (21-23 May).
III.  Event Probabilities 21 May-23 May
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           20 May 072
Predicted   21 May-23 May  071/070/070
90 Day Mean        20 May 070
V.  Geomagnetic A Indices
Observed Afr/Ap 19 May  002/005
Estimated Afr/Ap 20 May  003/005
Predicted Afr/Ap 21 May-23 May  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 21 May-23 May
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                10/10/10
Minor storm           01/01/01
Major-severe storm    01/01/01